Home / 2,187,621.60-3,281,432.40-1,921,901.10

Finding the Fourth Proportional to 2,187,621.60, 3,281,432.40 and 1,921,901.10

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Solution

The fourth proportional to 2,187,621.60, 3,281,432.40 and 1,921,901.10 is: 2,882,851.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187,621.60 : 3,281,432.40 = 1,921,901.10 : x
  2. Step 2: Convert to fraction form
    2,187,621.60/3,281,432.40 = 1,921,901.10/x
  3. Step 3: Cross multiply
    2,187,621.60x = 3,281,432.40 × 1,921,901.10
  4. Step 4: Simplify right side
    2,187,621.60x = 6,306,588,539,135.64
  5. Step 5: Solve for x
    x = 6,306,588,539,135.64/2,187,621.60
  6. Step 6: Final answer
    x = 2,882,851.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.